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Merged
thaJeztah merged 1 commit into from
May 11, 2018
Merged

Use filepath.Base instead of path.Base #1039

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6 changes: 3 additions & 3 deletions cli/command/stack/kubernetes/stack.go
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Original file line numberDiff line numberDiff line change
Expand Up@@ -2,7 +2,7 @@ package kubernetes

import (
"io/ioutil"
"path"
"path/filepath"
"sort"

"github.com/docker/cli/kubernetes/compose/v1beta2"
Expand DownExpand Up@@ -36,7 +36,7 @@ func (s *stack) createFileBasedConfigMaps(configMaps corev1.ConfigMapInterface)
continue
}

fileName := path.Base(config.File)
fileName := filepath.Base(config.File)

@thaJeztahthaJeztahMay 7, 2018

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Wondering; if someone runs in a Bash session on Windows, and/or uses /c/some/path notation (I think that was supported as well in some shells), would this fail?

Should we uses filepath.FromSlash() first (to normalise the input), then filepath.Base?

@mat007mat007May 8, 2018

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This works fine, this is what the filepath package takes care of, I believe.
I run everything from Powershell and MinGW64 indifferently and filepath has never failed me.

Given

package main
import (
"fmt"
"path/filepath"
)
func base(p string) {
fmt.Println(filepath.Base(p), p)
}
func main() {
base("/usr/local/bla")
base(`\usr\local\bla`)
base(`C:\usr\local\bla`)
base("C:/usr/local/bla")
base(`bla`)
}

Mingw64, Powershell and Cmd all print the same

bla /usr/local/bla
bla \usr\local\bla
bla C:\usr\local\bla
bla C:/usr/local/bla
bla bla

@thaJeztahthaJeztahMay 8, 2018

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Except, most of them should've printed bla?

If you use, for example, C:/Users/me/somefile, does it work, and is the config read from that file?

@mat007mat007May 8, 2018

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They all printed bla (first column).
Yes C:/Users/me/somefile yields somefile.
What config are you referring to?

@thaJeztahthaJeztahMay 8, 2018•
edited
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oh lol, I somehow overlooked the first column, and thought only the last example actually returned bla

What config are you referring to?

sorry, I was typing from my phone so a bit short; Ignore that part, as it's not relevant now

@cpuguy83cpuguy83May 11, 2018

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I thinkfilepath.FromSlash my be needed here, because filepath.Base is looking for os.PathSeparator. For instance, what happens if the path is /usr/local/bla/?
But I don't have Windows lying around to test this. There should likely be some tests for this.

@cpuguy83cpuguy83May 11, 2018

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@thaJeztah pointed out that it's looking at os.IsPathSeparator which on Windows accepts both \\ and / as a path separator.

content, err := ioutil.ReadFile(config.File)
if err != nil {
return err
Expand DownExpand Up@@ -76,7 +76,7 @@ func (s *stack) createFileBasedSecrets(secrets corev1.SecretInterface) error {
continue
}

fileName := path.Base(secret.File)
fileName := filepath.Base(secret.File)
content, err := ioutil.ReadFile(secret.File)
if err != nil {
return err
Expand Down